Police have arrested the girlfriend of michael wade page on a gun charge. And alex perez has more. Good morning, alex. Reporter: Good morning, george. Misty cook was arrested and charged with possessing a firearm as a felon. They do not believe she was involved in the deadly rampage. But they hope she may be able to fill in some of the gaps of what was going on with him. South milwaukee police and the fbi arrested misty cook late tuesday, booking the ex-girlfriend of wade michael page on an unrelated gun charge. Sources say authorities also wanted to talk to the 31-year-old about page. The couple lived together until june, until page's mother says she moved out and they stopped talking. Cook and page reportedly shared ties to white supremacist groups. Cook can be seen in these web photos, wearing a t-shirt and posing behind the banner of one group, volksfront. The group said tuesday, cook had not been involved since 2008. University of nebraska criminal professor, pete simi, says he also had insight into page's psyche. When he joined his first white power music band, this changed his life. Reporter: He interviewed page for a project researching white supremacist, starting in 2001. And page told him his neo-nazi beliefs came after serving in the army. He saw things that angers him and frustrated him and convinced him that whites were victimized. Reporter: Simi says page drank excessively. And never felt comfortable talking about his parents divorce or his mother, who died when he was young. And there is some good news this morning from lieutenant brian murphy. That's the officerhat was shot nine times by the gunman. There's word that he has opened his eyes and said hello.

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